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Finding the Fourth Proportional to 6,938.82, 10,408.80 and 2,008.89

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Solution

The fourth proportional to 6,938.82, 10,408.80 and 2,008.89 is: 3,013.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,938.82 : 10,408.80 = 2,008.89 : x
  2. Step 2: Convert to fraction form
    6,938.82/10,408.80 = 2,008.89/x
  3. Step 3: Cross multiply
    6,938.82x = 10,408.80 × 2,008.89
  4. Step 4: Simplify right side
    6,938.82x = 20,910,134.23
  5. Step 5: Solve for x
    x = 20,910,134.23/6,938.82
  6. Step 6: Final answer
    x = 3,013.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.